| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: c++03 |
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| 10 | |
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| 11 | // <tuple> |
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| 12 | |
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| 13 | // template <class... Types> class tuple; |
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| 14 | |
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| 15 | // template <class Alloc> |
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| 16 | // explicit(see-below) tuple(allocator_arg_t, const Alloc& a); |
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| 17 | |
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| 18 | // Make sure we get the explicit-ness of the constructor right. |
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| 19 | // This is LWG 3158. |
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| 20 | |
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| 21 | #include <tuple> |
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| 22 | #include <memory> |
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| 23 | |
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| 24 | |
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| 25 | struct ExplicitDefault { explicit ExplicitDefault() { } }; |
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| 26 | |
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| 27 | std::tuple<ExplicitDefault> explicit_default_test() { |
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| 28 | return {std::allocator_arg, std::allocator<int>()}; // expected-error {{chosen constructor is explicit in copy-initialization}} |
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| 29 | } |
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| 30 | |
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